DOI: 10.1007/s10584-015-1461-8
Scopus记录号: 2-s2.0-84951568401
论文题名: A global assessment of the carbon cycle and temperature responses to major changes in future fire regime
作者: Landry J.-S. ; Matthews H.D. ; Ramankutty N.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2015
卷: 133, 期: 2 起始页码: 179
结束页码: 192
语种: 英语
Scopus关键词: Atmospheric composition
; Atmospheric radiation
; Climate models
; Deforestation
; Feedback
; Fires
; Vegetation
; Aerosol forcing
; Fire frequencies
; Global carbon cycle
; Global temperatures
; Radiative forcings
; Surface temperatures
; Temperature response
; Vegetation cover
; Atmospheric temperature
; carbon cycle
; carbon dioxide
; carbon emission
; climate change
; global warming
; temperature profile
; vegetation cover
英文摘要: Changes in the current fire regime would directly affect carbon cycling, land–atmosphere exchanges, and atmospheric composition, and could therefore modulate the ongoing climate warming. We used a coupled climate–carbon model to quantify the effect of major changes in non-deforestation fires on the global carbon cycle and temperature, from 2015 to 2300. When considering only CO2 fire emissions, the impacts from changes in fire frequency were limited for the global carbon cycle, and almost negligible for the global atmospheric surface temperature. The net fire emissions were only a fraction of the CO2 directly emitted during combustion due to vegetation regrowth and climate–CO2 feedbacks, and the albedo increases caused by changes in vegetation cover countered the effect of increased atmospheric CO2 on global temperature. When employing a simplified approach based on global-mean radiative forcings in order to estimate the impact of non-CO2 fire emissions, the effect of increased fire frequency on global temperature depended critically on the uncertain net aerosol forcing. Despite this major uncertainty, our results overall do not support the hypothesis of a strong positive climate–fire feedback for the coming centuries. © 2015, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84478
Appears in Collections: 气候减缓与适应 气候变化事实与影响
There are no files associated with this item.
作者单位: Department of Geography and Global Environmental and Climate Change Centre, McGill University, Montréal, Canada; Department of Geography, Planning and Environment, Concordia University, Montréal, Canada; Liu Institute for Global Issues and Institute for Resources, Environment, and Sustainability, University of British Columbia, Vancouver, Canada
Recommended Citation:
Landry J.-S.,Matthews H.D.,Ramankutty N.. A global assessment of the carbon cycle and temperature responses to major changes in future fire regime[J]. Climatic Change,2015-01-01,133(2)